Bicycle-brake.



No. 634,42f. Patented'fct. 3, '1899. C. WITTE & H. M. I UICK.

' BICYCLE BRAKE.

(Application filed July 12, 1899.)

(No ModeL) lll/A a Juve/Zoran v s I UNITED STATES PATENT EEICEe CHARLES VITTE AND HENRY M. LUIOK, OF NEV YORK, N. Y.

SPECIFICATION forming part of Letters Patent No. 634,421, dated October 3, 1899.

Application tiled July 12,1899. Serial No. 723,534. (No model.)

The invention consists in the various fea-l tures of construction, fully pointed out in the claim.

In the accompanying drawings, Figure l is a side elevation of the brake; Fig. 2, a rear view of the same; Fig. 3, a plan; Fig. 4, a section on line 4 4, Fig. 3; and Fig. 5, a detail of the brake-lever.

The letter ci represents the crank-axle of the cycle, upon one end of which is mounted.

the usual sprocket-wheel, while a brake-disk b is mounted upon the opposite end. The disk b is engaged by the brake-shoe o, which. at its upper and lower ends is guided within the grooved rails of a frame cl, attached to the crank-hanger d of axle a at d. The front of the frame d is perforated and forms the guide for a mortised slide e, that encompasses a strong spring f, the rear end of which is secured to the brake-shoe c. To the forward end of slide e is pivoted a lever g, fulcrumed at g' to a collar 71,' clamped to the frame-bar t'. A brake-chain `j, running around pulley j', connects lever g to the brake-lever k, pivoted lto a clasp 7n', that surrounds the handlebar l. One or more weak retracting-springs m connect the brake-shoe c with the front of frame d.

When the brake-lever k is raised partly, the lever g will be tilted to move the slide e inwardly and apply the brake-shoe to the disk Z) without compressing strong springf. When a full brake is desired, the lever lois raised fully to compress the spring f and apply the shoe with additional power. Thus it will be 'seen that the rider can freely control the force with which the brake is applied. Upon a release of the brake-lever the weak springs m will throw the brake-shoe off and restore the parts to their normal position.

That we claim is- In a cycle-brake,the combination of a crank shaft with a disk mounted thereon, a fixed frame, a brake-shoe guided thereby, a slide engaging the frame, a strong spring that connects the slide to the shoe, a lever pivoted to the slide, a brake-chain for actuating the lever, and a weak retracting-spring, substan-V tially as specified.

Signed by us, at New York city, New York, this 11th day of July, 1899.

CHARLES WITTE. HENRY M. LUICK.

lVitnesses:

WILLIAM SCHULZ, F. v. BRIESEN. 

